CN103018098B - Structure test piece for testing composite strength of blade butt of wind turbine - Google Patents
Structure test piece for testing composite strength of blade butt of wind turbine Download PDFInfo
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- CN103018098B CN103018098B CN201210560102.XA CN201210560102A CN103018098B CN 103018098 B CN103018098 B CN 103018098B CN 201210560102 A CN201210560102 A CN 201210560102A CN 103018098 B CN103018098 B CN 103018098B
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Abstract
The invention discloses a structure test piece for testing composite strength of a blade butt of a wind turbine. Two symmetrically arranged deep holes are formed in the middle of the structure test piece; a through hole is formed on one side of each deep hole and at a connection part between the through hole and each deep hole; the deep holes are filled with fixing pieces; test rods are fixedly connected with the fixing pieces by the through holes; the fixing pieces are T-shaped nuts and are in interference fit with the deep holes; internal threaded holes are formed in the T-shaped nuts; and external threads at the end parts of the test rods are matched and connected with the internal threaded holes. When the test rods at the two ends of the structure test piece receive opposite pulling force, the pulling force passes through the test rods and the T-shaped nuts sequentially, and finally is transferred to the structure test piece to ensure that the structure piece is under the action of the opposite force, so that the strength of the blade butt can be reflected conveniently, accurately and effectively; the experimental efficiency is improved; and the experimental cost is lowered greatly.
Description
Technical field
The present invention relates to the device detecting pneumatic equipment blades, be specifically related to the structural test piece of testing composite strength of blade butt of wind turbine.
Background technology
Blade in Wind turbine is connected on machine unit hub by blade root, and it is that one end correspondence of stud bolt is connected in the built-in T-nut of blade root, and the other end is connected on machine unit hub with a circle stud bolt that blade root connects machine unit hub.When unit operation, the load that blade root part is born is maximum, so the structure of blade root compound substance need meet certain requirement of strength.
Verify when whole blade is mainly done static test by current domestic detection blade root composite material structural member intensity aspect, the deficiency of this quadrat method is that whole blade does experiment cost greatly, and the cycle is long, also will have special place and support equipment.
Summary of the invention
The technical problem to be solved in the present invention is to provide the structural test piece of test composite strength of blade butt of wind turbine, the size of structural test piece needs according to blade root specific design to determine, structural test piece gets the Unit agent structure part of the stressed maximum place intercepting of blade root, the maximum load of test structure test specimen can regard blade root stressed max architecture subassembly load as, can show that blade root is actual by test structure test specimen and can bear maximum static and fatigue load, without the need to whole blade is done test experiments, can be easily, exactly, effectively reflect blade root intensity, improve conventional efficient and greatly reduce experimental expenses simultaneously.
For achieving the above object, technical scheme of the present invention is as follows:
The structural test piece of test composite strength of blade butt of wind turbine, in the middle part of structural test piece, offer symmetrically arranged two deep holes, described deep hole side, and one through hole is set with deep hole junction, in described deep hole, be filled with fixture, reference test bar is fixedly connected with fixture by through hole.
Preferably, described fixture is T-nut, with deep hole interference fit.
Preferably, arrange internal thread hole in T-nut inside, external thread and the described internal thread hole of reference test bar end are connected.
Preferably, structural test piece gets the Unit agent structure part of the stressed maximum place intercepting of blade root.
By technique scheme, the invention has the beneficial effects as follows:
When the reference test bar at structural test part two ends be subject in opposite directions under tension time, pulling force is successively through reference test bar, T-nut, finally be delivered to structural test piece, structural member is made to be subject to the effect of opposing forces, blade root intensity can be reflected easily, exactly, effectively, improve conventional efficient and greatly reduce experimental expenses simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
With reference to Fig. 1, the structural test piece of test composite strength of blade butt of wind turbine, structural test piece 1 gets the Unit agent structure part of the stressed maximum place intercepting of blade root.
Be made up of structural test piece 1, T-nut 2, double threaded screw 3, structural test piece 1 is a rectangular parallelepiped, facilitates the process of choosing, and there are two deep holes 4 at structural test piece two ends, the same plane of described structural test piece 1 has two through holes 5, communicates respectively with two ends deep hole 4.
T-nut 2 is a right cylinder, and T-nut is 2, inserts respectively in 2 deep holes 4 in structural test piece 1 plane, is provided with internal thread hole, inserts stud bolt 3 in internal thread hole in T-nut.
Double threaded screw 3 is elongated cylinder, and elongated cylinder two ends are external thread, and stud bolt 3 arranges two pieces, and the through hole 5 of structural test piece 1 is run through in the end of stud bolt 3, and with and be connected with the internal thread hole of T-nut 2.
When structural test piece 1 two ends double threaded screw 3 be subject in opposite directions External Force Acting time, acting force is successively through double threaded screw 3, T-nut 2, finally be delivered to structural test piece 1, make structural member 1 be subject to the effect of opposing forces, thus effectively can test wind mill blade root composite material structural member intensity.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. test the structural test piece of composite strength of blade butt of wind turbine, it is characterized in that, symmetrically arranged two deep holes are offered in the middle part of structural test piece, described deep hole side, and be connected with deep hole a through hole is set, in described deep hole, be filled with fixture, reference test bar is fixedly connected with fixture by through hole.
2. the structural test piece of test composite strength of blade butt of wind turbine according to claim 1, is characterized in that: described fixture is T-nut, with deep hole interference fit.
3. the structural test piece of test composite strength of blade butt of wind turbine according to claim 2, is characterized in that: arrange internal thread hole in T-nut inside, and external thread and the described internal thread hole of reference test bar end are connected.
4. the structural test piece of test composite strength of blade butt of wind turbine according to claim 1, is characterized in that: structural test piece is the Unit agent structure part that the stressed maximum place of blade root intercepts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210560102.XA CN103018098B (en) | 2012-12-20 | 2012-12-20 | Structure test piece for testing composite strength of blade butt of wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210560102.XA CN103018098B (en) | 2012-12-20 | 2012-12-20 | Structure test piece for testing composite strength of blade butt of wind turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103018098A CN103018098A (en) | 2013-04-03 |
| CN103018098B true CN103018098B (en) | 2015-07-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210560102.XA Active CN103018098B (en) | 2012-12-20 | 2012-12-20 | Structure test piece for testing composite strength of blade butt of wind turbine |
Country Status (1)
| Country | Link |
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| CN (1) | CN103018098B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358961A (en) * | 1981-01-05 | 1982-11-16 | Western Electric Company, Inc. | Methods and apparatus for testing rupture strength of tubular parts |
| CN201191266Y (en) * | 2007-12-18 | 2009-02-04 | 上海玻璃钢研究院 | Wind driven generator blade root terminal embedded member and glass steel sticked fatigue strength test apparatus |
| CN101539478A (en) * | 2009-05-08 | 2009-09-23 | 中能风电设备有限公司 | Tester for testing multifunctional vane |
| CN101634604A (en) * | 2009-09-07 | 2010-01-27 | 中国人民解放军国防科学技术大学 | Static strength test method of large vane used for wind power and electrical power and test system thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100665517B1 (en) * | 2005-10-07 | 2007-01-09 | 동명대학교산학협력단 | Test structure and its fabrication for simple measurement of mechanical and fatigue properties of thin film materials |
-
2012
- 2012-12-20 CN CN201210560102.XA patent/CN103018098B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358961A (en) * | 1981-01-05 | 1982-11-16 | Western Electric Company, Inc. | Methods and apparatus for testing rupture strength of tubular parts |
| CN201191266Y (en) * | 2007-12-18 | 2009-02-04 | 上海玻璃钢研究院 | Wind driven generator blade root terminal embedded member and glass steel sticked fatigue strength test apparatus |
| CN101539478A (en) * | 2009-05-08 | 2009-09-23 | 中能风电设备有限公司 | Tester for testing multifunctional vane |
| CN101634604A (en) * | 2009-09-07 | 2010-01-27 | 中国人民解放军国防科学技术大学 | Static strength test method of large vane used for wind power and electrical power and test system thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张春友,等.小型风力发电机叶片静载实验研究.《内蒙古民族大学学报(自然科学版)》.2009, * |
| 杨婷,等.风电叶片静载荷应变测试试验.《实验室研究与探索》.2011, * |
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| Publication number | Publication date |
|---|---|
| CN103018098A (en) | 2013-04-03 |
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Guo Hui Inventor after: Zhang Jinnan Inventor after: Yang Ping Inventor after: Wang Xiaoyong Inventor after: Ni Guokang Inventor after: Li Haitao Inventor after: Li Donghai Inventor before: Wang Xiaoyong Inventor before: Zhang Jinnan Inventor before: Wang Jinhai Inventor before: Ni Guokang |
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Free format text: CORRECT: INVENTOR; FROM: WANG XIAOYONG ZHANG JINNAN WANG JINHAI NI GUOKANG TO: GUO HUI ZHANG JINNANYANG PING WANG XIAOYONG NI GUOKANG LI HAITAO LI DONGHAI |
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Application publication date: 20130403 Assignee: SHANGHAI FRP RESEARCH INSTITUTE CO., LTD. Assignor: Shanghai FRP Research Institute Co., Ltd. Contract record no.: 2015310000104 Denomination of invention: Structure test piece for testing composite strength of blade butt of wind turbine Granted publication date: 20150715 License type: Exclusive License Record date: 20151102 |
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Effective date of registration: 20160113 Address after: 224200, Yancheng City, Jiangsu Province, Dongtai City, East District, north latitude road two / six on the eastern side of the road Patentee after: SHANGHAI FRP RESEARCH INSTITUTE CO., LTD. Address before: 201404, Shanghai, Fengxian District Pu Xing Road No. 5200 Patentee before: Shanghai FRP Research Institute Co., Ltd. |